With what? I’m pretty sure they aren’t making alloy aluminum/plastics. So what parts do you mean?
When the turbine gets old they crush up the blades and put it in concrete for roads and bridges. They also make them into plastic pellets which get put into alloyed things like manhole covers, so you are wrong. Not sure why the downvotes and aggression.
Maybe referring to recycling blades[0], but that's not the same as taking random plastic waste and turning it into blades.